Zambaoanga Peninsula has five cities: Dipolog City, Dapitan City, Isabela City, Pagadian City, and the lone chartered city of Zamboanga City. Isabela City is actually part of the island-province of Basilan to the south of the peninsula, and is that province's capital. The residents of Basilan opted to join the Autonomous Region in Muslim Mindanao (ARMM) in a recent plebiscite. However, the citizens of Isabela City did not want to join ARMM and so the city was made a part of the Zamboanga Peninsula region with the enactment of Executive Order No. 36 (the same E.O. that renamed the region).